South Dakota renewal guide
Individual and Small On-site Wastewater System Installer License
If this license is up for renewal, this page gives you the fee, the timeline, and the items that usually hold the filing up.
See this alongside the other 20 South Dakota license pages we track.
Start here
What matters before you file.
Check the fee, the renewal window, and the documents or insurance records that can slow approval down.
Issuing authority
Renewal period
Every 12 months
Renewal fee
$105.00
Bond requirement
No
Insurance requirement
No
Last verified
Sep 2026
Before you renew
Get the filing straight.
- 1
File with the board
File through South Dakota Plumbing Commission and pay the $105.00 renewal fee once the supporting proof is ready.
Renew online - 2
Leave room for processing
Typical processing time is 45 days, so do not wait until the last minute.
Detailed notes
The fine print is here.
South Dakota Individual and Small On-site Wastewater System Installer License
The South Dakota Plumbing Commission issues the Individual and Small On-site Wastewater System Installer license to individuals and businesses that install septic systems and other on-site wastewater treatment systems in rural and suburban areas not served by municipal sewer.
What This License Authorizes
An On-site Wastewater System Installer may perform installation of individual septic tanks, drain fields, mound systems, and other small on-site wastewater treatment and disposal systems.
Who Needs This License
Contractors and individuals who install, repair, or replace individual septic systems and small on-site wastewater systems. This license is particularly relevant for rural construction where municipal sewer is not available.
Application Requirements
Applicants must pass the on-site wastewater system examination. No experience verification form is required beyond the application itself.
Fees
- Application Fee: $50
- License Fee: Contact the South Dakota Plumbing Commission for current amounts
Renewal
Licenses are renewed annually.
- Annual Renewal Fee: $105 (ARSD 20:53:12:03)
Contact the commission at SDPlumbing@state.sd.us or 605.773.3429 with renewal questions.
Consequences of Operating Without a License
Performing on-site wastewater system installation without a valid license is a Class 2 misdemeanor under SDCL 36-25. Penalties include fines and potential criminal prosecution.
*Disclaimer: This information is provided for general reference only and does not constitute legal advice. Always verify current requirements directly with the South Dakota Plumbing Commission.*
Official links
Check the board or agency directly.
Required documents
- exam_results
Source notes
South Dakota Plumbing Commission, Individual and Small On-site Wastewater System Installer License Application (Rev . 02/2026). https://dlr.sd.gov/plumbing/forms/On_Site_Wastewater_System_Installer_Application.pdf Corrected 2026-09-16: annual renewal fee set from ARSD 20:53:12:03 (effective July 2, 2025) — installer license $105.
Rules move. Check South Dakota Plumbing Commission again before you pay, renew, or schedule work around this requirement.
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Next steps
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